Small Thread Broom Adapter - Elston Materials, LLC
Pole Adapter For Broom Threaded Tip Replacement Pole Adapter For Mop | eBay
Broom Handle Threaded End,2 Set Threaded Tip Replacement Kit Threaded Tip Repair Kit Metal Threaded Handle Tips for 1" Wood or Metal Poles Handle Replacement Extension Pole Adapter for Mop,Broom - Yahoo
Marshalltown 1-ft to 1-ft Threaded Extension Pole in the Extension Poles department at Lowes.com